Re: CRichEditCtrl contents from RTF file

From:
Hector Santos <sant9442@nospam.gmail.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 27 Apr 2010 11:08:27 -0400
Message-ID:
<#X9LRuh5KHA.980@TK2MSFTNGP04.phx.gbl>
Goran wrote:

On Apr 27, 4:20 pm, Hector Santos <sant9...@nospam.gmail.com> wrote:

The problem with the particular code you have is that it doesn't
support reading a RTF file saved as UNI-GARBAGE A.K.A UNICODE.

It appears you need to convert each block read in into multi-byte
array. It works find when the RTF file is not stored in unicode.


Indeed, my file was not stored as unicode. But how do I save it so?
(Wordpad or swriter do not offer an easy option, e.g. something on the
menu, or in "save as" dialog).

Goran.


I tried Write.exe "save as" but it saves it as Unicode Code text
removing the RTF stuff.

I tried NotePad++ utility and it wasn't reading it right to begin with
so I wrote a quicky "ConvertToUnicode.cpp"

// File: G:\wc7beta\convert2unicode.cpp

#include <stdio.h>
#include <afx.h>

BYTE bom[2] = {0xFF,0xFE};

void main(char argc, char *argv[])
{
    FILE *fvi = fopen("active-api.rtf","rt"); // ansi original
    FILE *fvo = fopen("active-api-unc.rtf","wb");
    fwrite(bom,sizeof(bom),1,fvo);
    char sz[1024] = {0};
    while (fgets(sz,sizeof(sz),fvi)) {
       for (int i = 0; i < strlen(sz); i++) {
           char szo[2] = {0};
           szo[0] = sz[i];
           fwrite(szo,sizeof(szo),1,fvo);
       }
    }
    fclose(fvo);
    fclose(fvi);
}

With this I was able to correctly read in active-api-unc.rtf but the
callback has to convert each block it reads into a multi-byte array.

I am not an expert yet with this unicrap but for the proof of concept:

static DWORD CALLBACK MyStreamInCallbackW(DWORD dwCookie, LPBYTE
pbBuff, LONG cb, LONG *pcb)
{
    CFile* pFile = (CFile*)(DWORD_PTR)dwCookie;
    BYTE *p = new BYTE[cb];
    ZeroMemory(p,cb);
    *pcb = pFile->Read(p, cb);
    int n = 0;
    for (int w = 0; w < *pcb;) {
        pbBuff[n] = p[w];
        w += 2;
        n++;
    }
    delete p;
    TRACE("MyStreamInCallback: cb: %d | pcb: %d | n: %d\n",
                 cb, *pcb, n);
    *pcb = n;
    return 0;
}

What I would like to figure out is what CRichEditCtrl expects for
UNICODE with the SF_XXXXXX StreamIn() option.

I also found a reference that about changing the control type in the
resource file to "RichEdit20W"

     CONTROL "",IDC_RICHEDIT23,"RichEdit20W",ES_MULTILINE |
ES_AUTOHSCROLL | WS_BORDER | WS_VSCROLL | WS_TABSTOP,7,161,456,95

But that didn't work to read it in without having to convert it myself.

--
HLS

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